From: Stephen Hemminger <shemminger@osdl.org>
To: Jerry Cooperstein <coop@axian.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: seqlock/unlock(&xtime_lock) problems cause keyboard, time skew problems
Date: 18 Mar 2003 15:57:32 -0800 [thread overview]
Message-ID: <1048031851.6296.75.camel@dell_ss3.pdx.osdl.net> (raw)
In-Reply-To: <20030318205907.GB4081@p3.attbi.com>
On Tue, 2003-03-18 at 12:59, Jerry Cooperstein wrote:
> On Tue, Mar 18, 2003 at 12:32:24PM -0800, Stephen Hemminger wrote:
> > On Tue, 2003-03-18 at 11:05, Jerry Cooperstein wrote:
> > > Since 2.5.60 my thinkpad keyboard repeat rate has been erratic when
> ....
>
> >
> > Does this notebook vary the clock rate? If so then using TSC for
> > time of day clock is probably a problem. Try booting with notsc.
>
> Yes the notebook varies the clock rate -- its about 150MHZ with
> batter power, 500 MHZ on AC.
Part of the problem may be that the clock rate can change but the
cpu frequency code can't support the Intel SpeedStep.
Maybe, someone with more direct experience with laptop's can help.
next prev parent reply other threads:[~2003-03-18 23:46 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-18 19:05 Jerry Cooperstein
2003-03-18 20:32 ` Stephen Hemminger
2003-03-18 20:59 ` Jerry Cooperstein
2003-03-18 23:34 ` john stultz
2003-03-19 0:21 ` Jerry Cooperstein
2003-03-19 0:38 ` [PATCH] boot time parameter to turn of TSC usage Stephen Hemminger
2003-03-19 0:39 ` Andrew Morton
2003-03-19 1:03 ` Stephen Hemminger
2003-03-18 23:57 ` Stephen Hemminger [this message]
[not found] ` <1048022686.6291.6.camel@dell_ss3.pdx.osdl.net>
[not found] ` <20030318214101.GA4527@p3.attbi.com>
[not found] ` <1048025052.6294.16.camel@dell_ss3.pdx.osdl.net>
[not found] ` <20030318222313.GA4831@p3.attbi.com>
[not found] ` <1048027027.6297.33.camel@dell_ss3.pdx.osdl.net>
[not found] ` <20030318225801.GC4831@p3.attbi.com>
[not found] ` <1048030151.6297.71.camel@dell_ss3.pdx.osdl.net>
2003-03-19 0:27 ` seqlock/unlock(&xtime_lock) problems cause keyboard, time skew problems Jerry Cooperstein
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